Empahsis should be on post-dubstep/etc. stuff, but every dance music genre is allowed. This shouldn't be taken too seriously however, so have fun when producing Tracks don't necessary have to be more than 3-4min long, so this could be ideal for finishing your unfinished bits. Besides, the idea of 3min track is pretty ruff

I think you need to force yourself Ben.
Give yourself a week with a limited set of parameters, ie some drums, a few samples and one or 2 synths and just post what you come up with, keep it simple and short.
It's very helpful to get an objective distance on your creations.

Benny, it doesn't have to be more than 3-4min long. even shorter is okay this is because this is also place to make tunes for fun, and because some djs (like grime djs) don't really play tunes more than 1-2mins! i can also send you, and everyone else who needs, a little sample pack to get some inspiration. let me know!